离子交换法处理钨矿物原料苏打压煮母液的研究

对离子交换法处理钨矿物原料苏打压煮的母液进行了全面研究，系统测定了不同树脂对ＷＯ及ＣＯ的吸附性能及两者的分离系数，查明了从上述溶液中吸附ＷＯ的最佳条件。在流速为２ｃｍ／ｍｉｎ的条件下，对含ＷＯ３２７．０４ｇ／Ｌ，ＣＯ１２．２３ｇ／Ｌ，Ｃｌ￣－２ｇ／Ｌ及少量Ｐ，Ａｓ，Ｓｉ杂质的模拟工业料液而言，强碱性阴离子交换树脂Ｄ２１３吸附ＷＯ的交换容量达２２７．９ｍｇＷＯ３／ｇ干树脂．最终解吸液成分符合制取高纯ＡＰＴ的要求，含ＣＯ的交后液可部分返回苏打压煮过程以回收Ｎａ２ＣＯ３。     

用大孔树脂提取赤豆皮色素的研究

研究了用ＤＡ１０１、ＤＡ２０１树脂提取赤豆皮色素。实验测得树脂的饱和吸附容量为０．０８８ｇ／ｍｌ湿树脂。选用乙醇－酸作为色素的解析溶剂，确定了乙醇的流速、浓度和用量对色素回收率的影响。     

一种新阴离子交换纤维对铬（Ⅵ）的动态吸附性能

脱脂棉和环氧氯丙烷反应，生成３－氯－２－羟基丙基纤维素醚，其被乙二胺胺化可得到３－乙二胺基－２－羟基丙基纤维素醚──一种阴离子交换纤维。本文叙述了其对铬（Ⅵ）的动态吸附性能。在溶液ｐＨ值为３～６时，该交换纤维对铬（Ⅵ）的吸附效果最佳；吸附过程在５ｍｉｎ之内可基本达到平衡状态；当流速在５～１５ｍＬ／ｍｉｎ范围内时，吸附率没有大的变化；交换纤维对铬（Ⅵ）的最大吸附量随溶液浓度的增加而增加。用０．２ｍｏｌ／Ｌ的氢氧化钠溶液做为洗脱液，在洗脱速度为４ｍＬ／ｍｉｎ时，用８ｍＬ可将铬（Ⅵ）完全洗脱。     

气相色谱内标法测定反应液中邻苯二酚和对苯二酚

采用φ３＊０．５＊０．５＊２０００不锈钢柱内填充１５％ＳＥ－５４／Ｃｈｒｏｍｏｓｏｒｂ（８０－１００目）,柱温１４０℃,检测器温度２８０℃,汽化温度３００℃,载气（Ｎ２）流速（３．８圈）６．０ｍＬ／ｍｉｎ。氢气流速（４．４圈）２５ｍＬ／ｍｉｎ,助燃气（空气）流速（５．５圈）２００ｍＬ／ｍｉｎ display structure     

绞股蓝中痕量铅和铜的测定──黄原酯棉分离富集火焰原子吸收光谱法

研究了自制黄原酯棉对ＣＵ（Ⅱ）和Ｐｂ（Ⅱ）的动态吸附条件及模拟量共存元素对吸附的干扰程度，拟定了用火焰原子吸收光谱法测定绞股蓝及其浸泡液中Ｃｕ和Ｐｂ的分析方法，并对方法进行了检验。结果表明：在ｐＨ＝３、黄原酯棉用量为０．２ｇ、流速为３ｍＬ／ｍｉｎ时，浓度不低于０．０２μｇ／ｍＬ的Ｃｕ（Ⅱ）和Ｐｂ（Ⅱ）能被定量吸附；用ＨＮＯ３或１∶１ＨＮＯ３（２ｍＬ）可完全解吸；当有Ｃａ２＋、Ｍｇ２＋、Ｋ”、Ｆｅ３＋（４０ｍｇ）、Ａｌ３＋、Ｃｍ４（１０ｍｇ），Ｍｎ２＋、Ｃｒ－（５ｍｇ）和Ｎａ＋（５００ｍｇ）之一共存时未出现干扰；模拟消化液中共存离子对校正曲线影响很少；校正曲线的相关系数为０．９９７（Ｃｕ）和０．９９６（Ｐｂ）；消化法标准回收率为９６％～１０４％（Ｐｂ）和９７％～１０３％（Ｃｕ），浸出液法标准回收率为９５％～１０２％（Ｐｂ）和９７％～１０１％（Ｃｕ）。     

HPLC法测定康希力中氨苄及邻氯青霉素

采用高效液相色谱法（ＨＰＬＣ）对复方康希力胶囊中氨苄青霉素和邻氯青霉素进行测定。以醋酸盐缓冲液（ｐＨ＝４．５）－甲醇（５５：４５）为流动相，流速为１．０ｍＬ／ｍｉｎ；ＹＷＧ－Ｃ＿（１８）（１０μｍ）为固定相；乙酰苯胺为内标；检测波长为２５４ｎｍ。氨苄青霉素、内标物和邻氯青霉素的保留时间分别为３，０、５．５和９．０ｍｉｎ。氨苄青霉素和邻氯青霉素的回收率（ｎ＝５）分别为１００．３％（ＲＳＤ＝０．３７％）和１００．９％（ＲＳＤ＝０．４３％）。两种组分的最低检出浓度为５μｇ／ｍＬ。     

气相色谱法测定癸脂组成

阐述了癸脂的预处理方法以及气相色谱最佳操作条件：采用Φ４ｍｍ×３０００ｍｍ不锈钢柱，填充８％ＤＥＧＳ／１０１硅烷化担体（６０～８０目）进行色谱分离，载气Ｎ２流速为４０ｍＬ／ｍｉｎ，柱温为１８０℃：，使用ＳＰ－２３０５型气相色谱仪、ＦＩＤ检测器，获得了满意的定性定量分析结果。     

HPdCl^—4在Dowex MSA—1型树脂相内的扩散活化能

通过ＨＰｄＣｌ＾－４离子在Ｄｏｗｅｘ ＭＳＡ－１型大孔阴离子交换树脂相内吸附与解吸过程的研究，测定出吸附活化能△Ｅａ为３１７．０８Ｊ／ｍｏｌ；解吸活化能为６６７．４７Ｊ／ｍｏｌ。     

离子交换色谱法纯化赤霉素A_3的研究

对离子交换色谱法纯化赤霉素Ａ３（ＧＡ３）的研究表明，用强碱阴离子交换树脂Ｄ２９０能很好地分离ＧＡ３及其杂质，采用粒径ｒ０＝０．４０ｍｍ的细粒树脂装柱，用ｐＨ＝３．５、ｌｍｏｌ／Ｌ的ＮａＣｌ溶液洗脱，洗脱空间流速为２％ｍｉｎ－１，负载质量分数约为４％时，ＧＡ３与杂质可获得较好的分离，富含ＧＡ３的流出液中ＧＡ３质量分数为９４％，收率为９６％。     

黄孢展齿革菌菌丝球上铅的解吸

报道了Ｐｂ＾２＋从黄孢展齿革菌菌丝球上的解吸特性。实验结果表明ＨＣｌ、ＨＮＯ３、ＮａＣｌ、Ｎａ２Ｓ２Ｏ３、ＥＤＴＡ和柠檬酸都是有效的解吸剂，以硝酸的解吸效果为最好。考察了解吸剂浓度、解吸剂用量、解吸时间对解吸效果的影响，当硝酸浓度为０．１ｍｏｌ／Ｌ，解吸时间为１０ｈ，解吸剂用量为５０ｍＬ时，解吸效果最好，解吸率达９８％以上。菌丝球重复使用四次，吸附性能没有明显变化。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.